Picture-projecting machine.



J. M. KIRBY.`

PICTURE PROJECYING MACHINE.

' APPLICATION 'man FEB. 6. 1915. A' 1,294,676. Patented 16111511919.

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J. M. KIRBY. PICTURE PROJECTING MACHINE. APPLICATION FILED FEB. 6. IsIs.

Patented Feb. 18, 1919.

2 SHEETS-SHEE 2.

Nj I

JOSEPH M. KIRBY, OF BOULDER, COLORADO.

IPICTURE-PROJEOTING MACHINE.

Specification of Letters Patent.

Patented Feb. 18, 1919.

,pplcation filed February 6, 1915. Serial No. 6,433.

To all whom it may Concern:

Be it known that I, JOSEPH M. KIRBY, a citizen of the United States, residing at Boulder, county of Boulder, and State of Colorado, have invented certain new and useful Improvements in Picture-Projecting Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

My invention relates to an improvement in picture-projecting apparatus of the general character set forth in my previous Patent No. 915,359, dated March 16,1909, the said apparatus being adapted to be employed in connection with a phonograph or other sound producing machine, so that the picture exhibition may be directly -controlled by and timed in accordance with the reproduction of the phonograph or similar instrument.'

My present invention relates to certain improvements over the construction disclosed in the aforesaid patent, and the object of the present application is to specifically cover .these improvements. One feature of novelty consists in the employment of an independent motor mounted directly upon the picture projecting machine, and forming a part thereof, "the said motor being arranged to act in conjunction with the phonograph for operating the screw shaft `which carries the dog, whose functionA is to interrupt the picture-carrying diskduring the proper interval, for the display of the picture in alinement with the lenses, during the proper period, in orderthat the pictures thrown upon the canvas may be in proper synchronism with the words of the phonograph or other talking machine. It has been found in actual practice that the necessary power in the phonograph alone to properly perfo-rm this function, is sometimes lacking and the object of this self-contained motor feature of my improvement is to -overcome this diificulty. Another feature in connection with this motor is that it is equipped with a fan attachment whereby a current of air through the machine' is maintained for cooling purposes, and to keep down the heat of the lamp employed in connection with the projection of pictures, to the properde gree. Without the employment of a coolingv other feature consists in means for automatically locking the motor for actuating the picturecarrying disk, when the hinged plate carrying the said motor and disk are disconnected from the body of the machine and moved outwardly therefrom, the said lock ingmeans being, however, released upon the return of the said plate to its normal or operative position in connection with the operating mechanism of the projecting ma chine.

Still another feature consists in means for adjusting the reflector arranged in the rear of the lamp, whereby the light employed inllprojecting the pictures may be varied at w1 Other features of novelty will be apparent as this specification proceeds.

Having brieiy outlined my present iinprovement, I will proceed to describe the same in detail, reference being made to the accompanying drawing, in which is illustrated an embodiment thereof. In this drawing- Figure 1 is a section taken through my improved machine, approximately on the line 1-1, Fig. 4, certain parts within the casing being shown in elevation.

Fig. 2 is a fragmentary detail view of the picture-carrying disk or plate illustrat ing the face Vwhich is provided with teeth which coperate with the traveling, interrupting dog.

Fig. 3 is a fragmentary view of the machine, showing the hinge plate upon which the picture-carrier and its motor are mounted, in two positions, one in full lines and the other in dotted lines.

Fig. 4 is a vertical section taken through the machine on the line 4-4, Fig. 1, looking toward the left.

Fig. 5 is a horizontal section taken through the machine on the line 5 5, Fig. 4, looking downwardly, or in the direction of the arrow, the governor mechanism being broken away.

Fig. 6 .is a fragmentary view of the machine showing the plate upon which the picture-carrier and its motor are mounted, moved away from thevbodyof the machine.

Fig. 7 is a section taken on the line 7, Fig. 11, viewed in the direction ofthe arrow and showing the means for locking the spring motor 8 against movement.

The same reference characters indicate the same parts in all the views;

Let the numeral 5 desi-gnatefthe main casing of my improved machine, the saine containing an incandescentlanip 6, a reliector-7, a spring motor 8 connected in operative relation with a screw shaft 9, which engages-a seginentaliiut 10 carried bya dog 12, which is pivotallymounted and sli'dabl'e on a spindle 3', its' free extremity projecting for# wardly into the path of teeth or projections 13 formed on a reinforcing disk 14 applied to the picture-carrier 15, the latter, together with the 'reinforcing disk, beingV perforated as shown at 1G to receive the extremity 1`7 of a spindle 18 of a spring motor 19`in'closed within a casing 2O secured to a frontplate 21 hinged at its lower extremity as' shown at A22, whereby the said plate and motoran'd the picture-carrier and its connections may be swung away frointhe main frame' and'` caused to rest upon' a forwardly located support carrying a .yielding member 24 which the hinged plate directly engages when thrown forwardly out ofv operative' relation with the mechanism within' the main casing 5. The spindle 18 of the motor is equipped with a pinion 25 which meshes with a gear 26 fast on a spindlev 27 connected in operative relation with a power spring 28'. lVhen this spring is wound by applying a key to the spindle 27, it acts upon the gear 26 to operate the spindle 18 through the medium of the pinion 25, whereby the picture-carrier is actuated. This picture-carrier, while loosely engaging the extremity 17 of the spindle 18, is connected to rotate with the spindle by virtue of a pin 29 fast on a dislrSO, the said pin passing through a perforation formed .in ,the picture-carrier and its reinforcing disk 14, the disk 30 being made fast on the spindle 18 and being of such size as to give the picture-carrier the necessary support.l It should be explained that these picture-carriers may be made mainly of paper, Celluloid orother inexpensive material, so far as their outerportioiis wheie the pictures are located, are concerned. Located between the pinion 25 and a. stationary plate 311 of the spring motor, is a spiral spring 32, which is under tension to move the spindle 18 rearwardly or toward the right, referring to Fig. 1, when the hinge plate is in the operative position, as shown in Fig. 1. In this event, apin 33 attached to the forward extremity lof this spindle, is out of the path of a stop 2541 mounted on the plate 31. When, however,

this plate which is normally held in the operati've position by a spring 35, is disconnectedV from its spring and moved forwardly, whereby.theextremity 17 of the spindle 18 is disconnected from a sleeve 36 mounted on a spindle 37 4within the main casing, the recoil of the spring 32 moves the spindle 18 toward the right, and brings the pin 33 into position to engage the stop 34, thus locking the spring motor 19 against operation and preventing the movement of the picturefcari'ier. However, as soon as the plate 21 is returned to its normal position, the sleeve 86, acting" on the extremity 17 ofthe spindlelL-S, moves the lattentoward the left andy disconnects the pinB-from the stop, whereby the spring motor 19 isreleasedand acts to'rotate the picture-carrier, whereby the teeth 13 of the' latter` are made tocoperate with the dog 12ashereinafter more fully` explained.

The screw shaft 9l carries a sinall:` gear38 which .meshes with a ypinion 39, the latter also beingnorinally in meshing relation with a relatively .large gear' 40 of` the spring.- motor located within the casingi5 aiidfacting to impart rotary movement tothe screw shaft, either alone oijin conjunction with a phonograph or other talking machine whose, spindle 4.2 is shown coupled .with a spindle 2, carrying a pinion L1 3 also meshing with the gear 40. ;This .last namedgear for-ins one head (see F ig. d) o-fa4 drum 45 which is rotatably actuated through the medium of a coil spring 4:6 Awhich is? connected with the drum at one extremity Tas shown at 47, and with a spindle at its opposite extremity, thesaid spindle .being journaled in spaced stationary plates; 419y and 50. rFhe outer eXtreinityof this spindle 48 fis polygonal in cross section `as shown at 51.1,

to receive a sc clretlrey (not shown), whereby the spring of the motor' s mayrhenbe wor-uni or tightened. This spindle V4&8 carries :a ratchet disk 52 which is engaged by a gravity pawl 53, whiclnas the spring 46 is wound by turning yits spindle Ll8,`loclsY the spindle against thereturn,niovenient', as best illustrated in Fig. 1. Y

The gear 40 further meshes. with a pinionifiel fast on a spindle 55 whic'lrcarriesa relatively large gearV 56, which "in .turn meshes with a ,pinion 57 fast on a spindle 58 j'ourna-led ,in the .plate 49 and v a plate 59, suitably spaced' therefrom. Secured tothe spindle 58 is a relatively large gear' (i0 `which meshes with a .pinion 61 fast on a' spindle 62 j'ournaled in upright armsi andiid of a stationary frame plate' 6,5. This spindle' 62 carries a bloclrli whichv isfast on one extremity thereof ,an'dto which are attached the adjacent extremities of aiium'ber of relatively thin leaf `spriings 67 which are of considerable length and provided at their centers with weights 68` of such` mass as to increase the tendency of the springs to bow iso outwardly under thel action of centrifugal force as the spindle 62 is rotated. Splined upon the opposite extremity of this spindle is a block 69 to which the opposite extremities of the governor springs 67 are attached, as shown at 70.v To the youter extremity of this block 69 is made fast a friction disk 71, which is engaged by coperating friction rollers 72 carried by the arms 73 of a yoke 74, whose stem 75 is pivotally connected as shown at 78, with a pin'79 freely slidahle in an opening 80 formed in the wall 81 of the casing 5. The pin 79 is provided just at the right of the pivot 78, (see Fig. 4), with an enlargement 82 against which bears one extremityof a spiral spring 83, whose opposite extremity engages the inner surface of the wall 81. YThis pin hasl a threaded part 84 which protrudes outwardly beyond the wall 81 and is equipped with a tension nut 85 which is threaded on the pin for regu lating the tension of the spring 79. The yoke stem 75 is ulcrumed as shown at 8,6 upon the upper extremity of the upright part 64 on the frame plate 65.

By virtue of the gearing connection between the gear 40 and the spindle 62, this spindle is rotated very rapidly, whereby the springs 67 are caused to move outwardly, due to centrifugal force. The outward movement of the central portions of these VVsprings causes their extremities adjacent 'the disk 71 to move inwardly or toward the left (see Fig. 4), whereby the said disk is forced against the coperating friction `rollers 72 carried by the yoke 74, whereby the stem of this yoke is moved toward the right and the spring 79 compressed. By virtue of this construction, the speed of the gear 40 is controlled and regulated.

The .spindle 62 projects beyond the upright arm 64 of the frame plate 65, as shown at 87, and is, equipped with a fan 88, whereby, during the operation of the machine, air is drawn into the casing 5 through an adj acent opening 89 and forced out of the casing at the top through perforations 90, whereby the heat within thecasing incident to the em ployment of the lamp 6 for picture-projectingpurposes, is reduced to such an extent as to render itV unobjectionable.

The pinion 39 which transmits motion from the gear 40 to the screw shaft 9 through the medium of a coperating pinion 38, is mounted on aspindle 95 movable in a slot 91 formedin the side wall 92 of the casing, the spindle being actuated by means of a lever 93 ulcrumed as shown at 94 on theouter protruding extremity of the screw shaft 9. Hence, by operating the lever 93, the pinion 39 may be actuated to disconnect it from both the gear 40 and its meshing pinion 38 on the screw shaft, whenever it is desired to break the connection between the motor and the last named shaft.

The lamp 6 is mounted upon a rod 96 whose lower extremity is connected by means of a bolt 97 with two clamping members 98 between which the eye 99 of the rod is located. A wing nut 100 is applied to the threaded extremity of the screw. By tighten ing this nut on the screw, the lamp-supporting rod may be clamped in the desired position of adjustment. `Then the lamp is in use, the rod is in the upright position (see Fig. 1) and will be held in this position by means of the nut 100. When it is desired to remove the lamp from the casing 5, the back plate 101 is disconnected by reason oi' the fact that it is slidably mounted on the body of the casing. As soon as this is done, bv loosening the nut 100, the lamp may be thrown out of the casing, as its supporting rod ,96 swings on the screw 97. The lamp is mounted upon the rod 96 by means of a clamp 102 which is securely connected with the rod by screws 103 and 104 arranged on opposite sides of `the rod. By loosening one or both of these screws, the lamp may be vertically adjusted on its supporting rod 96. since the clamp 102 is part of a clamping ring 105 which encircles the socket 106 of the lamp.

Also mounted on the rod 96 above the clampingmember 102, is a support 107 for the reflector 7. This reflector-support comprises an angle member 109 whose lower part 110 consists of a clamp surrounding the upper extremity of the rod 96 and secured in place by a screw 112,. The angle member also includes a part 113 extending at right angles to the rod and coperating with a part 114 to permit the movement of the reflector toward and away from the lamp. These two parts 113 and 114 are slotted to receive ascrew 115 which is held in place by means of a nut 116. By loosening this nut the part 114 may be moved to cause the reiector to occupy a position nearer or farther from the lamp, as may be desired. Furthermore, by loosening the screw 112, the clamp 110 may be moved rotatably upon the rod 96, whereby the position of the reflector may be changed to harmonize with the re-` quirements in any particular case. Connected by means of a screw 118 with the outer extremity of the part 114 of the angle member, is an upwardly extending arm 117 which is slotted as shown at 119, to receive a screw 120 which is rigidly connected with the reflector 7 by means of a nut 122. By reason of this construction, the reiiector may be adjusted to regulate the lightV to conform to all possible conditions in a projecting machine.

` When the machine is in use, the lamp 6 is arranged in the rear of the alined lenses 123 and 124. The lens 123 is mounted on the front plate 125 of the main casing by means of screws 126; while the lens 124 is mounted on the hinged plate 21 carrying the spring motor 19 for actuating the picturecarrier, as heretofore explained.

The spring 35i which retains the plate 2l in operative relation with the picture-projecting mechanism within the main casing, is of the leaf type, and is provided with a recess 127 which is adapted to receive the upper extremity-of the plate (see Fig. 1). This spring projects. outwardly beyond the plate as shown at 12S, whereby it may be lifted sufficiently to release the plate whenever desired. This part' 128 is curved upwardly, so that the plate 21 will automatically assume its normal position when given the propermovement .in the direction of the main casing, as will be readily understood.

When the plate 21 is in the position shown in Fig. 1, whereby it cooperates with the picture-proj ecting mechanism, the spindle 18 is forced forwardly to disconnect the pin 33 from vthe stop 34, as heretofore explained. TheI sleeve 35 which the rear extremity of thel spindle engages, is arranged to receive its spindle 37, whose forward extremity engages a spiral spring 129 located within the sleeve and which is of greater strength than the spring 32 mounted on the spindle 18, and whose tension must be overcome in order that the forward thrust of the spindle 1S may occur, to disconnect the pin 33 from. its stop 34, as heretofore explained. The rear extremityof the spindle 37 is threaded and engages a threaded perforation in a bracket 130. This spindle is provided in the rear of the bracket with a nick tol receive a screw driver, for purposes of adjustment, whereby the tension of the spring 129 may be regulated at will, and in order to maintain the proper differentiation as compared withthe spring 32.

In the description of the operation of my improved picture-projecting machine, it should be explained that it may be employed either separate from, or directly connected with a phonograph or other sound reproducing machine, as may be required. The spring motor 8 which constitutes a part of lthe picture-projecting mechanism, makes it practicable to employ my improved machine either ofthe aforesaid relations. By reason of the-governor mechanism employed in `connection with the spring motor 8, the speed of this motor may be so regula-ted that the picture-carrier will be actu-ated in synchronism with the phonograph or other similar machine, whereby the pictures of the picture-carrier may bemade to illustrate the words, for instance, of the piece reproduced by the phonograph. Through this adjustment, the movement of the internupting dog 12 upon the screw shaft or spindle 19, is regulated to engage the teeth or projections 13 of the picture-carrier,- the proper length ottime, to hold any picture in alineiny order to cause its movement to properly Y actuate the picture-carrier to harmonize with the piece reproduced upon ythe phonograph and illustrated: in Y the ,pictures mounted on the picture-carrier. It should be explained that each picture-carrier will have its teeth or projections 13 which are adapted to be engaged bythe dog 9, a-srheretofore explained, arranged. with special. reference to the piece which the pictures of the carrier illustrate. Hence, the number of picture-carriers will correspond ,the number of musical pieces with which the picture-projecting machine is tok be em.- ployed.

While it will often be convenient to use my improved pictureprojecting machine disconnected from the phonographbut in synchronism therewith, as heretofore explained, it may also be directly coupled. with the phonograph, as shown. in Fig.V et, in which the spindle 42 is operated by the motor of the phonograph, and is coupled to rotate with the spindle 2 of the picture-projecting machine. In this event, the two motors will coperate, giving the necessary power under all circumstances for actuating the picturecarrier-interrupting dog, as heretofore explained. j

While the picture carrier `15 as illustrated in the drawing, is reinforced fbya disk 1d, this carrier may be made integral and teeth 13 punched out of the material of. which it is composed or otherwise formed thereon or attached thereto, as may be desired.,

In order to lock the motor 8 againstmovement whenever desired, I may employ a brake comprising a disk 132 which is fast on the outer exposed extremity of thegovernor shaft 62, the said disk beingarranged to be acted on by a shoe 134C which is actuated by an eccentric cam 135 mounted on a spindle 136,` the spindle being journaled or swiveled in a bearingv13'.V The outer extremity of this spindle is equipped with a relatively large milled head 138. By properly adjusting this spindle, the shoe may be separated from the periphery of the diskY 132 (see F ig. 7). Agaim when it is desired to cause the shoe to engage the peripheral face of the disk, for locking the motor against movement, the spindle may be adjusted to cause the cam 135 to force the shoe downwardly against the face of the disk, whereby sutlicient friction will be produced to lock the disk and consequently, the .governor spindle 62, as well as the entire spring-motor mechanism against movement. When it is desired to start the motor, it is only necessary to release the disk by the proper adjustment of the shoe.

Having thus described my invention, what I claim is,-v

1. In a picture projecting machine, the

combination with a suitable casing and pic-` ture-projecting mechanism located therein, of a plate connected with said casing to move toward or away from the same, a picturecarrier mounted on said plate, a motor also mounted on said plate for actuating said carrier, means for automatically locking the motor against movement as the said plate is moved away from the picture-projecting mechanism, and means for releasing the motor as it is moved into coperative relation with said mechanism.

2. In a picture projecting machine, the combination with a suitable casing and projecting mechanism mounted therein, of a plate connected with the casing to move toward or away from the same, a picture carrier mounted on the plate, a motor also mounted on the plate for actuating the carrier, and means for automatically locking the motor` as the plate is moved away from the projecting mechanism.

In a picture projecting machine, the combination with a casing and projecting mechanism, of a picture carrier connected with the casing, means for imparting movement to the carrier, a dog for intermittently interrupting the carrier, means for actuating said dog, a motor mounted within the casing, a connection between said motor and said dog-actuating means including a gear movably mounted to break said connection.

il. In a picture projecting machine, the combination' with a casing and projecting mechanism, of a picture carrier connected with the casing, means Jfor imparting movement to the carrier, a dog for intermittently interrupting the carrier, a screw shaft for operating said dog, a motor mounted within the casing, a connection between said motor and screw shaft including a gear on the motor and a gear mounted on an oscillatory axis and meshing with the motor gear and adapted to be withdrawn from said motor gear by oscillatory movement, and means for oscillating said gear.

In testimony whereof, I aiX my signature in presence of two witnesses.

.I OSEPI-I M. KIRBY.

Witnesses:

A. EBERT OBRIEN, A. OBRIEN.

Copies of this patent may be obtained for iive cents each, by addressing the Commissioner of Patents, Washington, D. G. 

